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vitamins and bariatric surgery

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https://www.readbyqxmd.com/read/28217392/bariatric-bypasses-contribute-to-loss-of-bone-mineral-density-but-reduce-axial-back-pain-in-morbidly-obese-patients-considering-spine-surgery
#1
EDITORIAL
Nancy E Epstein
BACKGROUND: Many spine surgeons recommend stringent weight loss, including bariatric bypass procedures, prior to "elective" spine surgery (should not be for axial back pain alone) in morbidly obese patients (defined by a body mass index (BMI) of >40 mg/kg(2) or >35 mg/kg(2) with two or more major comorbidities) to reduce their greater risk for major perioperative complications. Although bypasses typically lead to marked weight reduction and even reduced axial back pain, they also promote unrecognized and often insufficiently treated vitamin D deficiency and loss of bone mineral density...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28215312/prevalence-of-clinical-thiamine-deficiency-in-individuals-with-medically-complicated-obesity
#2
Anand Nath, Tung Tran, Timothy R Shope, Timothy R Koch
Thiamine is a vitamin whose deficient can result in multiorgan symptoms. We described an 18% prevalence of clinical thiamine deficiency after gastric bypass surgery. Our hypotheses are that individuals with medically complicated obesity frequently have clinical thiamine deficiency and that diabetes mellitus is a mechanism for development of clinical thiamine deficiency. This is a single institution, retrospective observational study of consecutive patients with a body mass index of at least 35 kg/m(2) who were evaluated in preoperative gastrointestinal bariatric clinic from 2013 to 2015...
January 2017: Nutrition Research
https://www.readbyqxmd.com/read/28213665/neurologic-manifestations-of-vitamin-b-deficiency-after-bariatric-surgery
#3
Suriya Punchai, Zubaidah Nor Hanipah, Katherine M Meister, Philip R Schauer, Stacy A Brethauer, Ali Aminian
INTRODUCTION: The aim of this study was to assess the incidence, clinical presentation, and outcomes of neurologic disorders secondary to vitamin B deficiencies following bariatric surgery. METHODS: Patients at a single academic institution who underwent bariatric surgery and developed neurologic complications secondary to low levels of vitamins B1, B2, B6, and B12 between the years 2004 and 2015 were studied. RESULTS: In total, 47 (0.7%) bariatric surgical patients (Roux-en-Y gastric bypass n = 36, sleeve gastrectomy n = 9, and duodenal switch n = 2) developed neurologic manifestations secondary to vitamin B deficiencies...
February 17, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28210963/impact-of-preoperative-serum-vitamin-d-level-on-postoperative-complications-and-excess-weight-loss-after-gastric-bypass
#4
Caroline Schaaf, Jean Gugenheim
INTRODUCTION: The aim of this study was to determine the impact of hypovitaminosis D on Gastric Bypass outcomes. METHODS: We retrospectively reviewed all patients who underwent primary intention Gastric Bypass in our center between January 2012 and December 2013. Postoperative complications, 1 and 2-year excess weight loss were compared between patients with and without hypovitaminosis D. RESULTS: Among 258 patients who met inclusion criteria, 56 (21...
February 16, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28202272/long-term-nutritional-status-in-patients-following-roux-en-y-gastric-bypass-surgery
#5
Kemal Dogan, Jens Homan, Edo O Aarts, Hans de Boer, Cees J H M van Laarhoven, Frits J Berends
BACKGROUND & AIMS: Roux-en-Y gastric bypass (RYGB) is an effective treatment for obesity. However, it also leads to multiple nutritional deficiencies. Much is known about the short term prevalence, but hardly any long term data is available on deficiencies. The aim of this study was to assess the long term outcome of nutritional status after RYGB. METHODS: We performed a retrospective analysis of prospectively collected data obtained from 51 morbidly obese patients who underwent a primary laparoscopic RYGB...
February 3, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28191525/obesity-diabetes-and-the-role-of-bile-acids-in-metabolism
#6
Gerald H Tomkin, Daphne Owens
Bile acids have many activities over and above their primary function in aiding absorption of fat and fat soluble vitamins. Bile acids are synthesized from cholesterol, and thus are involved in cholesterol homeostasis. Bile acids stimulate glucagon-like peptide 1 (GLP1) production in the distal small bowel and colon, stimulating insulin secretion, and therefore, are involved in carbohydrate and fat metabolism. Bile acids through their insulin sensitising effect play a part in insulin resistance and type 2 diabetes...
June 1, 2016: Journal of Translational Internal Medicine
https://www.readbyqxmd.com/read/28161887/evaluation-of-vitamin-and-trace-element-requirements-after-sleeve-gastrectomy-at-long-term
#7
Silvia Pellitero, Eva Martínez, Rocío Puig, Alba Leis, Roxanna Zavala, María Luisa Granada, Cruz Pastor, Pau Moreno, Jordi Tarascó, Manel Puig-Domingo
BACKGROUND: Nutritional deficiencies are common after bariatric surgery, but data are scarce after sleeve gastrectomy (SG) at long term. METHODS: We performed a prospective nutritional status evaluation before and at 2 and 5 years after SG in morbid obese patients receiving mulvitamin and mineral supplementation at a Spanish university hospital. One hundred seventy-six patients (49.3 ± 9.1 years and 46.7 ± 7.4 kg/m(2)) were evaluated; 51 of them were followed during 5 years...
February 4, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28153426/factors-affecting-gastrointestinal-absorption-of-levothyroxine-a-review
#8
REVIEW
Marko Skelin, Tomo Lucijanić, Daniela Amidžić Klarić, Arnes Rešić, Miro Bakula, Ana-Marija Liberati-Čizmek, Hossein Gharib, Dario Rahelić
PURPOSE: Levothyroxine (LT4) is a drug with a narrow therapeutic index, applied in small amounts (micrograms), which makes interactions in the absorption phase clinically significant. The main aim of this article was to review and present the latest information on factors that affect the gastrointestinal absorption of this drug. METHODS: Relevant data were collected by using the MEDLINE, PubMed, EMBASE, Web of Science, Science Direct, and Scopus databases with the key words levothyroxine and absorption...
January 30, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28150927/-pregnancy-after-bariatric-surgery
#9
Franco Pepe, Francesco DE Luca, Mariagrazia Stracquadanio, Claudia Garraffo, Veronica C Santonocito, Agata Privitera
Pregnancy after bariatric surgery has some peculiarities related to obesity, type of surgery, amount of weight loss, time elapsed from the surgery and adherence to medical prescriptions. Pregnant woman is at risk of nutritional deficiencies and it is unclear whether there is an increased incidence of intestinal complications during pregnancy after bariatric surgery and whether this kind of complications are more frequent during cesarean section. The fetus is at high risk of prematurity and fetal growth restriction, but they seem not at increased risk of birth defects (DTN) except in individual cases of folic acid deficiency (DTN) or vitamin K defect (similar abnormalities in patients receiving oral anticoagulants)...
April 2017: Minerva Ginecologica
https://www.readbyqxmd.com/read/28146321/high-dose-oral-colecalciferol-loading-in-obesity-impact-of-body-mass-index-and-its-utility-prior-to-bariatric-surgery-to-treat-vitamin-d-deficiency
#10
R J King, D Chandrajay, A Abbas, S M Orme, J H Barth
Obesity is associated with lower vitamin D levels compared with normal weight subjects, and if levels are not replaced prior to bariatric surgery, this can increase fracture risk as bone density typically falls post-operatively. We analysed the effect of body mass index (BMI) on vitamin D levels in response to 300 000 IU of colecalciferol in patients with vitamin D deficiency (<30 nmol L(-1) ). Patients were grouped according to their BMI as normal weight (20-24.9 kg m(-2) ), overweight (25-29.9 kg m(-2) ), obese class I (30-34...
February 1, 2017: Clinical Obesity
https://www.readbyqxmd.com/read/28131127/the-effects-of-bariatric-surgery-on-bone-metabolism
#11
REVIEW
Naina Sinha Gregory
Most metabolic effects following bariatric surgery are favorable. One area in which the consequences seem to be detrimental is on skeletal health. Mechanisms that have been cited include malabsorption of calcium and vitamin D, decrease in mechanical loading, and changes in gastrointestinal and fat-derived hormone levels. It is important that the impact of these procedures on bone metabolism is closely examined. The significance of the bone loss that occurs, and its possible effect on future fracture risk, should also be evaluated...
March 2017: Endocrinology and Metabolism Clinics of North America
https://www.readbyqxmd.com/read/28112481/the-effects-of-body-weight-status-on-orthostatic-intolerance-and-predisposition-to-noncardiac-syncope
#12
REVIEW
G A Christou, D N Kiortsis
Orthostatic intolerance (OI) is frequently the mechanism underlying the occurrence of noncardiac syncope (NCS) and is associated with substantial risk for injury. Body weight status appears to be a modifier of orthostatic responses and possibly influences the propensity to NCS. The majority of cross-sectional studies have found that the lower the body mass index (BMI) the greater the predisposition to OI is, accompanied with both down-regulation of sympathetic nervous system activity and up-regulation of parasympathetic nervous system activity...
January 23, 2017: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28103699/vitamin-d-alteration-associated-with-obesity-and-bariatric-surgery
#13
Eric Lespessailles, Hechmi Toumi
Obesity and severe obesity constitute growing serious health problems reaching epidemic proportion in most countries. Interactions and relationships between obesity and bone tissue and its metabolism are complex but are more and more studied and recognized. Obesity is associated with an altered hormonal profile including particularly bone-regulating hormones like vitamin D. Bariatric surgery procedures, thanks to their effectiveness to achieve therapeutic endpoints for comorbidities associated with obesity, have had an increasing success...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28091892/bariatric-roux-en-y-gastric-bypass-surgery-adipocyte-proteins-involved-in-increased-bone-remodeling-in-humans
#14
Maria Fernanda G Biagioni, Adriana L Mendes, Célia Regina Nogueira, Celso V Leite, Loraine Gollino, Gláucia Mfs Mazeto
PURPOSE: Bariatric surgery has been associated with bone remodeling changes. The action of adipokines on the expression of receptor activator of nuclear factor kappa β ligand (RANKL) and osteoprotegerin (OPG) and on an increase in sclerostin could be related to these changes. MATERIALS AND METHODS: This study aimed to assess the repercussions of weight loss, fat mass (FM), and fat-free mass (FFM) loss and biochemical and hormonal changes on bone remodeling markers after Roux-en-Y gastric bypass (RYGB)...
January 13, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28079243/serum-levels-of-vitamin-a-visual-function-and-ocular-surface-after-bariatric-surgery
#15
Luana Paula Nogueira de Araújo Brandão, Lucio Vilar, Bernardo Menelau Cavalcanti, Pedro Henrique Amorim Brandão, Tiago Eugênio Faria E Arantes, Josemberg Marins Campos
BACKGROUND: - Bariatric surgery is the most effective treatment for severe obesity, but the surgery increases the risk of developing nutritional deficiencies, such as vitamin A deficiency. In human metabolism, vitamin A plays a role in vision. OBJECTIVE: - To evaluate serum vitamin A, visual function and ocular surface of patients undergoing bariatric surgery. METHODS: - A cross-sectional and analytical study was conduced with 28 patients undergoing bariatric surgery for at least 6 months...
January 2017: Arquivos de Gastroenterologia
https://www.readbyqxmd.com/read/28065736/long-term-outcomes-of-bariatric-surgery-in-adolescents-with-severe-obesity-fabs-5-a-prospective-follow-up-analysis
#16
Thomas H Inge, Todd M Jenkins, Stavra A Xanthakos, John B Dixon, Stephen R Daniels, Meg H Zeller, Michael A Helmrath
BACKGROUND: Little is known about the long-term outcomes of bariatric surgery for severe adolescent obesity, raising questions about the durability of early responses to surgery. We aimed to analyse long-term (>5 years) outcomes of Roux-en-Y gastric bypass in a cohort of young adults who had undergone the operation during adolescence, in the Follow-up of Adolescent Bariatric Surgery at 5 Plus Years (FABS-5+) extension study. METHODS: A cohort of young people aged 13-21 years underwent Roux-en-Y gastric bypass for clinically severe obesity at a paediatric academic medical centre in the USA...
January 5, 2017: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/28050789/weight-loss-and-nutritional-outcomes-10-years-after-biliopancreatic-diversion-with-duodenal-switch
#17
Philippe Topart, Guillaume Becouarn, Jacques Delarue
BACKGROUND: Biliopancreatic diversion with duodenal switch (BPD/DS) is the most effective bariatric surgical procedure, but major concerns exist about the nutritional consequences. OBJECTIVES: The study reported weight loss and nutritional outcomes of 80 patients with a follow-up of at least 10 years. SETTING: The follow-up was conducted at a university hospital as well as in a private practice institution in France. METHODS: Eighty patients operated on between February 2002 and May 2006 were reviewed...
January 4, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28035521/postoperative-outcomes-of-laparoscopic-bariatric-surgery-in-older-obese-patients-a-matched-case-control-study
#18
Damien Bergeat, David Lechaux, Adil Ghaina, Ronan Thibault, Vianney Bouygues
BACKGROUND: Laparoscopic bariatric surgery (LBS) in older obese patients remains debated regarding postoperative outcomes. OBJECTIVES: The aim of this case-control study is to evaluate global results of LBS in patients ≥60 years (yr) with a matched case control study. METHODS: All patients ≥60 years who benefited from LBS in our center between January 2009 and January 2014 were included in this retrospective study. They were matched (1:2) to patients <40 and 40-59 years on BMI, surgical procedure and year, and history of previous LBS...
December 29, 2016: Obesity Surgery
https://www.readbyqxmd.com/read/28027914/vitamin-d-and-intestinal-calcium-transport-after-bariatric-surgery
#19
REVIEW
Anne L Schafer
Bariatric surgery is a highly effective treatment for obesity, but it may have detrimental effects on the skeleton. Skeletal effects are multifactorial but mediated in part by nutrient malabsorption. While there is increasing interest in non-nutritional mechanisms such as changes in fat-derived and gut-derived hormones, nutritional factors are modifiable and thus represent potential opportunities to prevent and treat skeletal complications. This review begins with a discussion of normal intestinal calcium transport, including recent advances in our understanding of its regulation by vitamin D, and areas of continued uncertainty...
December 24, 2016: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28012018/bilateral-insufficiency-hip-fractures-after-bariatric-surgery
#20
V Barro, J H Nuñez, A Gargallo-Margarit, A Sallent, M Aguilar, A Hernandez
Bariatric surgery is one of the most common surgeries within developed countries due to the increase in morbid obesity that has been observed in the past decades. The short-term alterations in the metabolism of calcium and vitamin D are well known after these procedures; however, the clinical and biochemical consequences may not be detected for years or even remain undiagnosed. We present the first case of bilateral insufficiency hip fracture after years of bariatric surgery. Although this is a long-term and rare complication, with the high number of gastric bypass performed in the past years, the number of these cases could increase with time...
December 23, 2016: Osteoporosis International
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